On the positivity of [Formula omitted] parton distributions
We revisit our argument that shows that parton distribution functions (PDFs) in the [Formula omitted] scheme are non-negative in the perturbative region, with the dual goals of clarifying its theoretical underpinnings and elucidating its domain of validity. We specifically discuss recent results pro...
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| Vydáno v: | The European physical journal. C, Particles and fields Ročník 84; číslo 3 |
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| Hlavní autoři: | , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
Springer
01.03.2024
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| Témata: | |
| ISSN: | 1434-6044 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | We revisit our argument that shows that parton distribution functions (PDFs) in the [Formula omitted] scheme are non-negative in the perturbative region, with the dual goals of clarifying its theoretical underpinnings and elucidating its domain of validity. We specifically discuss recent results proving that PDFs can turn negative at sufficiently low scale, we clarify quantitatively various aspects of our derivation of positivity in the perturbative region, and we provide an estimate for the scale above which PDF positivity holds. |
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| ISSN: | 1434-6044 |
| DOI: | 10.1140/epjc/s10052-024-12681-1 |